removed an unnecessary conversion
removed an unnecessary conversion


Former-commit-id: 9c8cfbf641b6f37648c7d643255a2723fde3afc0 [formerly 9c8cfbf641b6f37648c7d643255a2723fde3afc0 [formerly 1beea6fac9ecda8245b79deca431f1c09d345cf9]]
Former-commit-id: addb1d03ddbf1ca598e3779765b49d59a9a1edd5
Former-commit-id: 6803becd70f9a47ee534c7104194f59278ad9d65
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine